Firstly when you access the web many resources are loaded for each request all the resources you see on the attached (policiasnacionales.txt) are downloaded. There is a plugin that can help with this, it is called JCH Optimize. This plugin compresses your CSS and JS files that are in the main section of the site, to compress the number of HTTP connections that have to be made to help reduce the total time from when the browser makes a request until download is minimized page completely.
Besides all the resources requested for each visit to the web, we have observed the following:
https://mail.google.com/mail/u/0/?ui=2&ik=d43c6779a9&view=att&th=148a4005ef2b4ea6&attid=0.0.1.1&disp=emb&zw&atsh=1
This is a top of apache requests (not complete) in which it is seen that with a single query are opening three apache threads are consuming almost 90% of CPU. This a single query, if we multiply this by the number of server CPU consumption soars.
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET / HTTP/1.1" 200 11358 "-" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1104
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /cometchat/cometchatcss.php HTTP/1.1" 200 5483 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 562
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_komento/themes/cleo/css/style.css HTTP/1.1" 200 2773 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 584
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/foundry/3.1/styles/fancybox/default.css HTTP/1.1" 200 1701 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1149
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_komento/assets/css/common.css HTTP/1.1" 200 6723 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1148
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/foundry/3.1/styles/dialog/default.css HTTP/1.1" 200 1270 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1147
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_komento/themes/kuro/css/style.css HTTP/1.1" 200 11379 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1152
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_komento/assets/css/syntaxhighlighter/default.css HTTP/1.1" 200 1226 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 599
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_easysocial/themes/frosty/styles/base.min.css HTTP/1.1" 200 21425 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 595
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /modules/mod_easysocial_login/styles/style.min.css HTTP/1.1" 200 943 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 585
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/css/settings.css HTTP/1.1" 200 9310 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 596
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/css/dynamic-captions.css HTTP/1.1" 200 747 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 604
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/css/static-captions.css HTTP/1.1" 200 575 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 603
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_easysocial/themes/frosty/styles/more.min.css HTTP/1.1" 200 30146 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 595
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/foundry/3.1/config/f6b3e93a3672296761d51252d56bfc2f.js HTTP/1.1" 200 1588 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 581
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /components/com_easysocial/themes/frosty/styles/style.min.css HTTP/1.1" 200 41032 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 596
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_komento/config/82acba388fdd2087b797b10d762a459a.js HTTP/1.1" 200 3013 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 581
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/jui/js/jquery-noconflict.js HTTP/1.1" 200 489 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 554
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/jui/js/jquery.min.js HTTP/1.1" 200 33795 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 547
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/jui/js/jquery-migrate.min.js HTTP/1.1" 200 3515 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 555
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/system/js/caption.js HTTP/1.1" 200 786 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 547
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/js/jquery.themepunch.tools.min.js HTTP/1.1" 200 32408 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 598
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/system/js/core.js HTTP/1.1" 200 2130 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 544
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/js/jquery.themepunch.revolution.min.js HTTP/1.1" 200 24627 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 603
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/system/js/mootools-core.js HTTP/1.1" 200 27456 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 553
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_komento/scripts/komento-1.8.3.optimized.min.js HTTP/1.1" 200 34332 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 577
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_komento/resources/128d4ee47fc30c25c9991723974a02a2.js HTTP/1.1" 200 3083 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 584
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_easysocial/resources/9565dd0f9742babf14a09b71c4c70481.js HTTP/1.1" 200 8372 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 587
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /plugins/system/lazyloadforjoomla/lazyloadforjoomla.js HTTP/1.1" 200 2223 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 574
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/foundry/3.1/scripts/foundry.min.js HTTP/1.1" 200 91409 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 561
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /templates/wanderers/css/theme.css HTTP/1.1" 200 35820 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 569
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /media/com_easysocial/scripts/easysocial-1.3.4.static.min.js HTTP/1.1" 200 259692 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 580
192.168.0.64 - - [23/Sep/2014:21:11:31 +0200] "GET /cometchat/cometchatjs.php HTTP/1.1" 200 69487 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1114
192.168.0.64 - - [23/Sep/2014:21:11:33 +0200] "GET /templates/wanderers/scripts/bootstrap.min.js HTTP/1.1" 200 7030 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 565
192.168.0.64 - - [23/Sep/2014:21:11:33 +0200] "GET /templates/wanderers/scripts/theme.js HTTP/1.1" 200 1106 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 557
192.168.0.64 - - [23/Sep/2014:21:11:33 +0200] "GET /cookiechoices.js HTTP/1.1" 200 2226 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 537
192.168.0.64 - - [23/Sep/2014:21:11:33 +0200] "GET /templates/wanderers/scripts/jquery-1.10.2.min.js HTTP/1.1" 200 33368 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 569
192.168.0.64 - - [23/Sep/2014:21:11:33 +0200] "GET /cometchat/cometchatjs.php HTTP/1.1" 200 69350 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 546
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /plugins/system/lazyloadforjoomla/blank.gif HTTP/1.1" 200 512 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1161
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /templates/wanderers/images/bg.jpg HTTP/1.1" 200 1891 "
https://www.policiasnacionales.es/templates/wanderers/css/theme.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1185
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /media/foundry/4.0/scripts/plupload.min.js HTTP/1.1" 200 15226 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 562
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /cometchat/cometchat_receive.php?callback=jqcc1710638348925550829_1411499569873&callbackfn=&buddylist=1&initialize=1¤ttime=1411499570&typingto=0&status=&basedata=null HTTP/1.1" 200 600 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 825
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /templates/wanderers/favicon.ico HTTP/1.1" 200 1636 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1150
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /components/com_komento/themes/kuro/images/ico-readmore.png HTTP/1.1" 200 866 "
https://www.policiasnacionales.es/components/com_komento/themes/kuro/css/style.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1225
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /components/com_komento/themes/kuro/images/ico-hits.png HTTP/1.1" 200 797 "
https://www.policiasnacionales.es/components/com_komento/themes/kuro/css/style.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1221
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /components/com_komento/themes/kuro/images/ico-comment.png HTTP/1.1" 200 795 "
https://www.policiasnacionales.es/components/com_komento/themes/kuro/css/style.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1224
192.168.0.64 - - [23/Sep/2014:21:11:35 +0200] "GET /cometchat/themes/hangout/images/modules/chatrooms.png HTTP/1.1" 200 3597 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1172
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/assets/large_left.png HTTP/1.1" 200 1989 "
https://www.policiasnacionales.es/media/com_uniterevolution2/assets/rs-plugin/css/settings.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1244
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/assets/bullet.png HTTP/1.1" 200 2726 "
https://www.policiasnacionales.es/media/com_uniterevolution2/assets/rs-plugin/css/settings.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1240
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /cometchat/themes/hangout/images/modules/announcements.png HTTP/1.1" 200 3603 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1176
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /cometchat/themes/hangout/images/cometchat.png HTTP/1.1" 200 14430 "
https://www.policiasnacionales.es/cometchat/cometchatcss.php" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1190
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /cometchat/themes/hangout/images/modules/games.png HTTP/1.1" 200 3646 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1168
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /media/com_uniterevolution2/assets/rs-plugin/assets/large_right.png HTTP/1.1" 200 2033 "
https://www.policiasnacionales.es/media/com_uniterevolution2/assets/rs-plugin/css/settings.css" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1245
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /images/twetter.png HTTP/1.1" 200 3397 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1137
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /images/google_plus.png HTTP/1.1" 200 2876 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1141
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /images/ini.png HTTP/1.1" 200 1179 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1133
192.168.0.64 - - [23/Sep/2014:21:11:36 +0200] "GET /images/atracador.png HTTP/1.1" 200 20219 "
https://www.policiasnacionales.es/" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0" 1139